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Vishay General Semiconductor - Diodes Division P6SMB12CAHM3/I
- Part No.:
- P6SMB12CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12CAHM3/I.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,668
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Product details
Overview
P6SMB12CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 12 V standoff voltage (VWM), 16.7 V maximum clamping voltage at 35.9 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB12CAHM3/I datasheet, P6SMB12CAHM3/I pinout, P6SMB12CAHM3/I application, or P6SMB12CAHM3/I equivalent, this device serves as a halogen-free, AEC-Q101-qualified transient protector with SMB (DO-214AA) package, low incremental surge resistance, and fast response time - critical for ESD and lightning surge immunity in compact PCB layouts.
Technical Context
The P6SMB12CAHM3/I operates bidirectionally with symmetrical breakdown characteristics: minimum breakdown voltage is 11.4 V and maximum is 12.6 V at 1 mA test current. Its clamping behavior is defined by VC = 16.7 V at IPPM = 35.9 A under 10/1000 μs waveform, ensuring predictable overvoltage limiting during repetitive transients.
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to TJ = +150 °C. The device is rated for 5.0 W steady-state power dissipation at TA = 50 °C on infinite heatsink and meets MSL Level 1 per J-STD-020 with peak reflow temperature of 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10.2 V - maximum reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 11.4 V to 12.6 V at IT = 1 mA - ensures reliable conduction onset during overvoltage events |
| VC (Clamping Voltage) | 16.7 V at IPPM = 35.9 A - limits downstream voltage stress during 600 W transient surges |
| PPPM (Peak Pulse Power) | 600 W - sustains high-energy transients like IEC 61000-4-5 surge tests without failure |
| ID (Max Reverse Leakage) | 5.0 μA at VWM - minimizes standby power loss and avoids false triggering in low-power circuits |
| TJ max. | +150 °C - enables use in under-hood automotive and high-temperature industrial environments |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). Polarity: unmarked for bidirectional operation; no cathode/anode designation required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bidirectional) | Common terminal pair | Interchangeable terminals - symmetric conduction in both directions; connects across protected line and ground or differential pair |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control and ADAS modules |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC J-STD-020 requirements - supports green manufacturing and end-of-life compliance |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events without degradation when properly mounted on 5.0 mm × 5.0 mm copper pads |
| Low clamping ratio (VC/VWM ≈ 1.64) | Minimizes voltage overshoot during transients - protects 12 V logic interfaces and CAN bus receivers with tight tolerance margins |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking - reduces production overhead and avoids moisture-induced popcorning |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed between sensor signal line and chassis ground to clamp transients before reaching ADC input or op-amp buffer. Use Value: Maintains signal integrity under ±12 V transients while adding <0.5 pF capacitance - avoids bandwidth reduction in 10 kHz sensor bandwidths. |
Use Scenario: Shielding digital input channels of programmable logic controllers from inductive switching noise in factory automation systems. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input lines to suppress flyback spikes from solenoid valves and relay coils. Use Value: Limits voltage to ≤16.7 V during 35.9 A surges - prevents latch-up in Schmitt-trigger inputs and extends optocoupler lifetime. |
| Telecom Line Interface Protection | Consumer USB Port ESD Guard |
|
Use Scenario: Safeguarding RS-485 transceivers in base station backhaul links against lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Differential-mode TVS across A/B lines and common-mode TVS from each line to ground - configured per IEC 61000-4-5 recommendations. Use Value: Clamps common-mode surges to <20 V within 1 ns - preserves signal eye diagram integrity for 10 Mbps data rates. |
Use Scenario: Adding secondary-level ESD protection on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance TVS placed after primary polymer fuse and upstream of USB switch IC to handle ±15 kV contact discharge. Use Value: Delivers <5.0 μA leakage at 10.2 V - avoids battery drain in always-on USB-C accessories while meeting IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12CA | Same VWM (10.2 V) and VC (16.7 V), but lower PPPM (400 W); SMB package identical | Limited to lower-energy transients (e.g., IEC 61000-4-2 only); not rated for IEC 61000-4-5 Level 4 | Select SMAJ12CA only when system-level surge testing does not exceed 400 W pulse energy |
| 1.5KE12CA | Higher power (1500 W), axial-leaded DO-201 package; VWM = 10.2 V, VC = 18.2 V | Requires through-hole mounting and larger board area; less suitable for high-density SMT designs | Choose 1.5KE12CA where mechanical robustness and higher surge margin outweigh SMT constraints |
Compared with SMAJ12CA and 1.5KE12CA, the P6SMB12CAHM3/I uniquely combines AEC-Q101 qualification, halogen-free construction, and 600 W surge capability in an industry-standard SMB footprint - enabling drop-in replacement in automotive and industrial SMT lines without layout or thermal redesign.
Availability
P6SMB12CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer USB port protection requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB12CAHM3/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB series was developed for high-reliability transient suppression in space-constrained, high-surge environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and consistent clamping behavior.
FAQ
What is the clamping voltage of the P6SMB12CAHM3/I under maximum surge conditions?
The P6SMB12CAHM3/I has a maximum clamping voltage (VC) of 16.7 V at 35.9 A peak pulse current with a 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and reflects worst-case voltage seen by protected circuitry during standardized surge events - critical for verifying compatibility with 12 V logic rail tolerances.
Is the P6SMB12CAHM3/I suitable for automotive applications?
Yes, the P6SMB12CAHM3/I is AEC-Q101 qualified (indicated by the HM3 suffix) and specifically rated for automotive use. It undergoes stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD per JESD22-A114 - making it appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal and electrical stress is mandatory.
How does the bidirectional configuration of the P6SMB12CAHM3/I affect its circuit placement?
The P6SMB12CAHM3/I has no polarity marking and conducts identically in both directions, allowing direct placement across any two nodes requiring symmetrical overvoltage protection - such as differential signal pairs (RS-485), AC power lines, or ungrounded sensor outputs. Unlike unidirectional TVS diodes, it eliminates orientation errors during automated assembly and simplifies schematic symbol usage.
What is the thermal resistance of the P6SMB12CAHM3/I, and how does it impact PCB layout?
The P6SMB12CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain safe operation at full 600 W pulse rating, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad size increases thermal impedance and may derate surge capability - verified in Figure 2 of datasheet 88370.
Does the P6SMB12CAHM3/I meet lead-free and halogen-free compliance standards?
Yes, the HM3 suffix confirms the P6SMB12CAHM3/I is halogen-free and RoHS-compliant per EU Directive 2011/65/EU and JEDEC JS709. It contains no brominated flame retardants, chlorine, or fluorine above threshold limits - validated via material analysis per IEC 62321 and reported in Vishay's material declaration document 99912.
P6SMB12CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB12CAHM3/I FAQ
1.How can I place an order for P6SMB12CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12CAHM3/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6SMB12CAHM3/I reliable?
The price and inventory of P6SMB12CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB12CAHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB12CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12CAHM3/I?
P6SMB12CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12CAHM3/I order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6SMB12CAHM3/I?
For technical support, including P6SMB12CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12CAHM3/I requirements.
6.How does Aetrix verify that P6SMB12CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB12CAHM3/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6SMB12CAHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB12CAHM3/I?
All P6SMB12CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12CAHM3/I, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6SMB12CAHM3/I part is unused and in its original packaging.
Return procedure for P6SMB12CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12CAHM3/I Tags
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